<?php
   session_start();
?>
<!DOCTYPE html>
<!--
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and open the template in the editor.
-->
<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
    </head>
    <body>
        <?php
         if (isset($_SESSION['userinfo'])) 
         {
             echo $_SESSION['userinfo']['username'];
         }
        ?>
        欢迎您！
    </body>
</html>
